Alien Life

In the search for life elsewhere, many studies focus on finding liquid water. But what if life could exist with some other solvent? Saturn´s smoggy moon Titan makes scientists question the possibilities for methane-based life in the galaxy.

The White House has issued a statement in response to petitions asking the government to "disclose long withheld knowledge" of extraterrestrial beings. There is no evidence of life beyond our planet as of yet, but upcoming missions and research could help us determine if we

The search for intelligent alien life goes beyond SETI's search for intergalactic radio signals. Some scientists are looking for evidence of technological footprints and biological clues embedded in the DNA of life on Earth.

A new study finds that desert worlds -- like the planet Arrakis in the sci-fi classic "Dune" -- might be the more common type of habitable planet in the galaxy, rather than watery planets such as Earth.